Marc11,
I have found the that if you shoot the 175gr out of the 7mm Rem Mag,you might as well go with a 300 Win mag or Short.
Not taking anything away from the 7mm,I have owned one of each and like the 30 cal magnums more IMHO.

A good all around bullet weight for the 7 mmRM is the 160 gr partion,I have only killed 2 animals with the 7mm 1 bull elk and 1 mule deer,I found that the 7mm is more than enough gun for elk and deer.
The elk was shot at around 250-275 yds,the bullet exited and kick dirt up 50 yds the other side,and the deer was forward 1/4 to me angle at 75-80 yds the bullet entered through the brisket destroying the heart lungs,deflected off the back rib,across through the stomach and out the lower leg just under the back hind quarter, and kept going.So you don't have to worry about penetration with this gun,your biggest question now is wich scope.BBJ